Date wrong and no way to fix

No matter what I do the date is always a week back. Tried on three different computers. Went into computer to make sure date is correct, rebooted the whole bit but when trying to post it will not let me put in the correct date. Today, the 29th, it will not accept any date prior to the 22nd.

Hi there,
The default timezone is UTC time. You can reset your timezone here > Settings > General Select the closest city to you in the same timezone in the drop-down menu you see there and then click "save changes".

If you are referring to changing the date and time on your computer hover your mouse over the date and time and click. Then the settings will then open so you can change them.